I'm 66 And Just Went Back To Work PT Sub-teaching.

I'm 66 and just went back to work PT sub-teaching. About 11 days ago I had a couple of sneezers in a k-gartner class, and less than 72 hours later got NASTY upper resp. symptoms....I waited a couple days before contacting my PCP this past Wedneaday for an official Rx (during those 2 days took some left-over Amoxicillan)......the Doc knows I'm not a hypochondriac, and without seeing me prescribed "Clindamycin", 20 caps / 3X a day. I'll be done that regimen Tuesday nite. I'm better, but still have a horrendous cough and break out in sweats. Think it's walking pneumonia and I should ask for an x-ray?